Component Analysis of Different Parts of Chestnut

밤의 부위별 성분 분석

  • Kim Yong-Doo (Department of Food Science and Technology, Sunchon National University) ;
  • Choi Ok-Ja (Department of Cooking Science, Sunchon National University) ;
  • Kim Kyung-Je (Department of Food Science and Technology, Sunchon National University) ;
  • Kim Ki-Man (Department of Food Science and Technology, Sunchon National University) ;
  • Hur Chang-Ki (Department of Food Science and Technology, Sunchon National University) ;
  • Cho In-Kyung (Department of Food Science and Technology, Nambu University)
  • Published : 2005.04.01

Abstract

To obtain basic data utilizing chestnuts as a raw food material, proximate analysis was conducted. Chemical component of chestnut flesh were $63.60\%$ moisture, $118\%$ ash, $3.02\%$ crude protein, $0.615\%$ crude fat, $1.21\%$ crude fiber, and $30.37\%$ nitrogen free extract, respectively. The weight ratio of tegmen, seed coat and flesh of chestnut sample were 17.05, 14.9, and $68.05\%$, respectively. The total amino acid contents of flesh and seed coat were $2,994\;mg\%$ and $1,450\;mg\%$, respectively. The total amount of free amino acids was less than that of total amino acids. As results of mineral analysis, the content of K was higher than that of any other minerals. The contents of maltose and sucrose were higher than those of fructose and glucose. The total polyphenol contents of tegmen, seed coat, fresh, leaf and bark were $9.56\;mg\%$, $0.047\;mg\%$, $0.23\;mg\%$, $15.44\;mg\%$ and $17.85\;mg\%$, respectively.

밤의 일반성분, 유리당, 유리아미노산, 구성아미노산, 무기질, catechin 및 total polypenol을 분석한 결과는 다음과 같다. 밤의 수분 함량은 밤의 외피, 내피, 깐밤, 밤, 밤나무 수피 및 밤나무 잎 중 밤나무 잎이 $63.60\%$로 가장 높았고, 회분 함량은 밤의 각각의 부위가 비슷하게 나타났으나 내피가 $1.95\%$로 가장 많은 함량을 보였다. 조단백질 함량은 각각의 부위중 간밤에서 $3.02\%$로 가장 많은 함량을 보였고 조지방 함량은 외피에서 $0.68\%$로 가장 많은 함량을 보였으며 조회분 함량은 밤나무 내피에서 $1.60\%$로 가장 많은 함량을 보였다. 각각의 밤나무 부위중 유리당은 이당류인 maltose와 sucrose가 주종이었으며 fructose과 glucose은 소량 함유되어 있었다. 외피와 내피에는 당 종류에 관계없이 소량 함유되어 있었다. 밤나무 각각의 부위중 구성아미노산은 aspartic acid 외 16종이 검출되었고 구성아미노산 총량은 전체 $2,619\;mg\%$, 외피 $1,034\;mg\%$, 내피 $1,450\;mg\%$ 및 간밤 $2,994\;mg\%$로 나타났고 부위에 따른 유리 아미노산 총량은 전체 $744.75\;mg\%$, 외피 $211.4\;mg\%$, 내피 $357.6\;mg\%$ 및 깐밤 $593.4\;mg\%$이었으며 주된 아미노산은 aspartic acid, glutamic acid, proline 등으로 구성아미노산의 이율과 유사하였다. 각각의 밤에 함유된 무기성분은 K>Mg>Ca>Na>Fe>Zn>Cu 순으로 검출되었다. 부위별 total polyphenol 함량은 밤나무 잎, 수피 및 내피에 많은량이 함유되어 있었으며 깐밤과 외피에서는 미량 검출되었다. catechin 함량은 내피에 epicatechin 이 $0.15\;mg\%$ 함유되어 있었다.

Keywords

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